The amount of expense arising from equity-settled share-based payment transactions in which the goods or services received did not qualify for recognition as assets. [Refer: Expense from share-based payment transactions]

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The number of instruments granted in share-based payment arrangement.

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The number of share options exercisable in a share-based payment arrangement.

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RS - Summary of equity-settled 2017 Stock Option Plan Group (Details)	12 Months Ended
	Dec. 31, 2023 EUR (€) shares € / shares	Dec. 31, 2022 EUR (€)	Dec. 31, 2021 EUR (€)
Management Board
Stock Options Plans [Line Items]
Exercises (in shares)	0
Executive committee
Stock Options Plans [Line Items]
Exercisable stock options (in shares)	10,589
April 2017 Stock Option Plan
Stock Options Plans [Line Items]
Subscription right	110.00%
Weighted-average price (eur per share) \| € / shares	€ 55.52
Maximum term for exercise options	3 years
Performance Term of Program in Years	4 years
Exercisable stock options (in shares)	72,650
Exercisable shares (in shares)	79,935
Exercises (in shares)	0
Expense from equity-settled share-based payment transactions \| €	€ 0	€ 0	€ 2,757
April 2017 Stock Option Plan \| Management Board
Stock Options Plans [Line Items]
Exercisable stock options (in shares)	0
Exercisable shares (in shares)	0
April 2017 Stock Option Plan \| Executive committee
Stock Options Plans [Line Items]
Exercisable stock options (in shares)	4,018
Exercisable shares (in shares)	4,421
April 2017 Stock Option Plan \| Current and former employees
Stock Options Plans [Line Items]
Exercisable stock options (in shares)	68,632
Exercisable shares (in shares)	75,514
April 2018 Stock Option Plan
Stock Options Plans [Line Items]
Subscription right	60.00%
Weighted-average price (eur per share) \| € / shares	€ 81.04
Maximum term for exercise options	3 years
Performance Term of Program in Years	4 years
Exercisable stock options (in shares)	63,127
Exercisable shares (in shares)	37,901
Exercises (in shares)	0
Expense from equity-settled share-based payment transactions \| €	€ 0	€ (14,267)	€ 52,795
April 2018 Stock Option Plan \| Management Board
Stock Options Plans [Line Items]
Exercisable stock options (in shares)	0
Exercisable shares (in shares)	0
April 2018 Stock Option Plan \| Executive committee
Stock Options Plans [Line Items]
Exercisable stock options (in shares)	3,854
Exercisable shares (in shares)	2,314
April 2018 Stock Option Plan \| Current and former employees
Stock Options Plans [Line Items]
Exercisable stock options (in shares)	63,924
Exercisable shares (in shares)	35,587